emp-db.rar_in

using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace _13._10 { class staff { public int code; public string name; public staff(int c, string n) { code = c; name = n; } } class teacher : staff { public string subject; public string publication; public teacher(int c, string n, string sub, string pub) : base(c, n) { subject = sub; publication = pub; } public void update(int c, string n, string sub, string pub) { code = c; name = n; subject = sub; publication = pub; } public void display() { Console.WriteLine("Code:" + code + "\t Name:" + name + "\tsub:" + subject + "\tpub:" + publication); } } class officer : staff { public string grade; public officer(int c, string n, string g) : base(c, n) { grade = g; } public void update(int c, string n, string g) { code = c; name = n; grade = g; } public void display() { Console.WriteLine("Code:" + code + "\t Name:" + name + "\tgrade"+grade ); } } class typist : staff { public string speed; public typist(int c, string n, string sp) : base(c, n) { speed = sp; } } class regular : typist { public regular(int c, string n, string sp) : base(c, n, sp) { } public void update(int c, string n, string sp) { code = c; name = n; speed = sp; } public void display() { Console.WriteLine("Code:" + code + "\t Name:" + name + "\tSpeed:" + speed); } } class casual : typist { int dailywages; public casual(int c, string n, string sp, int dw) : base(c, n, sp) { dailywages = dw; } public void update(int c, string n, string sp,int dw) { code = c; name = n; dailywages = dw; speed = sp; } public void display() { Console.WriteLine("Code:" + code + "\t Name:" + name + "\tspeed:" + speed + "\tdailywages:" + dailywages ); } } class Program { static void Main(string[] args) { teacher t = new teacher(0, "", "", ""); casual c = new casual(0, "", "", 0); regular r = new regular(0, "", ""); officer o = new officer(0, "", ""); while (true) { Console.WriteLine("Enter the choice:\n1.Insert\n2.Delete\n3.Update\n4.display\n5.Exit"); int ch = int.Parse(Console.ReadLine()), choice; switch (ch) { case 1: Console.WriteLine("Select:\n1.Teacher\n2.Casual typist\n3.Regular typist\n4.officer\n"); choice = int.Parse(Console.ReadLine()); switch (choice) { case 1: Console.WriteLine("Enter code name sub pub\n"); t = new teacher(int.Parse(Console.ReadLine()), Console.ReadLine(), Console.ReadLine(), Console.ReadLine()); break; case 2: Console.WriteLine("Enter code name speed dailywages\n"); c = new casual(int.Parse(Console.ReadLine()), Console.ReadLine(), Console.ReadLine(), int.Parse(Console.ReadLine())); break; case 3: Console.WriteLine("Enter code name speed"); r = new regular (int.Parse(Console.ReadLine()), Console.ReadLine(), Console.ReadLine()); break; case 4: Console.WriteLine("Enter code name grade"); o = new officer(int.Parse(Console.ReadLine()), Console.ReadLine(), Console.ReadLine()); break; } break; case 2: Console.WriteLine("Select:\n1.Teacher\n2.Casual typist\n3.Regular typist\n4.officer\n"); choice = int.Parse(Console.ReadLine()); switch (choice) { case 1: t.update(0, "", "", ""); break; case 2: c.update(0,"", "",0); break; case 3: r.update(0, "", ""); break; case 4: o.update(0, "", ""); break; } break; case 3: Console.WriteLine("Select:\n1.Teacher\n2.Casual typist\n3.Regular typist\n4.officer\n"); choice = int.Parse(Console.ReadLine()); switch (choice) { case 1: Console.WriteLine("Enter code name sub pub\n"); t.update(int.Parse(Console.ReadLine()), Console.ReadLine(), Console.ReadLine(), Console.ReadLine()); break; case 2: Console.WriteLine("Enter code name speed dailywages\n"); c.update(int.Parse(Console.ReadLine()), Console.ReadLine(), Console.ReadLine(), int.Parse(Console.ReadLine())); break; case 3: Console.WriteLine("Enter code name speed"); r.update(int.Parse(Console.ReadLine()), Console.ReadLine(), Console.ReadLine()); break; case 4: Console.WriteLine("Enter code name grade"); o.update(int.Parse(Console.ReadLine()), Console.ReadLine(), Console.ReadLine()); break; } break; case 4: Console.WriteLine("Select:\n1.Teacher\n2.Casual typist\n3.Regular typist\n4.officer\n"); choice = int.Parse(Console.ReadLine()); switch (choice) { case 1: t.display(); break; case 2: c.display(); break; case 3: r.display(); break; case 4: o.display(); break; } break; case 5: return; } } } } }